It looks just like the original Ghostbusters honestly. A goofy, silly comedy movie.
Comedy has changed though. In the 80's, comedy was all about wit and sarcasm. That's why Bill Murray and Dan Aykroyd were so good in the film. They are both very sarcastic and witty performers and writers.
Modern comedy is much more about sight gags and slapstick. Look at films like The Hangover, Scott Pilgrim, Trainwreck, anything by Pixar, etc, for evidence of that. This trailer has shows that this movie has that type of humor in abundance.
I PREFER the witty, sarcastic comedy to the physical comedy, but then again, this movie isn't being made for me. It's being made for a new generation who may not prefer that comedy style. So we'll see where it goes
But just from the trailer I can't predict if it will be good or bad. It's just different and different can go either way